Dude has barely played so far, and once he plays, he adds something none of the others have. His passing accuracy is better than Pjanic or on par, he has more dribbles and forward passes than any other of our midfielders.
The fucker is surely not a likeable character, has been out for 70% of the season and seems to have disciplinary problems. But its not like we are in a position where we should care if the fucker is an idiot or not, we need money from his sale (not forced exit) or we need the fucker to help us getting a functioning midfield. There is definitely no hope in Rabiot, Bentancur, Berna ever becoming useful players.